Evaluation of head and neck cancer knowledge among the at-risk population of Karachi, Pakistan: a cross-sectional survey

Purpose - The purpose of this study was to assess the knowledge of head and neck cancers (HNCs), their risk factors, signs and symptoms among the general public of Karachi, Pakistan. Design/methodology/approach - Initially, 503 individuals were approached for data collection, out of which 404 fit the inclusion criteria (response rate = 80.03%). Nonprobability convenience sampling was utilized to select participants who fell under the age group of 15-60 years, barring the fields of Bachelor of Medicine and Bachelors of Surgery (MBBS) and Bachelors of Dentistry (BDS). Knowledge was evaluated by a 9-item questionnaire, the scores of which yielded the following interpretations: No (0), low (1-3), moderate (4-6) and high (7-9) knowledge. Findings - Of the 404 participants who completed the questionnaire, 357 (88.4%) participants claimed to be aware of HNC. The HNC knowledge scores had a statistical relevance with socioeconomic status (p = <0.01) and level of education (p = 0.02). Most participants recognized a "lump or swelling in the throat" (87.1%) as the most common symptom, followed by "bleeding in mouth or throat" (84.7%). Surprisingly, 75.25% of participants thought HNCs were inclusive of brain cancer. Originality/value - Overall, knowledge of HNCs among the general public of Karachi surpasses the knowledge in other regions around the world. Our study demonstrated that people indulge in unhealthy habits despite having sufficient knowledge and this warrants prompt interventions and counseling of the people.